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William Harris and Son, London - rare mid 19th century rosewood Patent Compensating Portable Barometer no. 283, rectangular silvered scale and U-shaped mercury tube terminating with a glass cistern and bulb, the centre with mercury thermometer tube and Fahrenheit scale calibrated from minus 10 to 150, the silvered plate engraved 'Harris's Patent Compensating Portable Barometer' and 'William Harris & Son 50 High Holborn London' and serial number '283', side fitted with rackwork vernier scale annotated for barometric inches with weather observations and angled steel pointer for recording temperature, vernier with an independent friction slide adjustment with external secondary brass side knob, bottom edge with recording disc engraved with barometric scale, 33cm high 7.5cm wide
William Harris and Son, London - rare mid 19th century rosewood Patent Compensating Portable Barometer no. 283, rectangular silvered scale and U-shaped mercury tube terminating with a glass cistern and bulb, the centre with mercury thermometer tube and Fahrenheit scale calibrated from minus 10 to 150, the silvered plate engraved 'Harris's Patent Compensating Portable Barometer' and 'William Harris & Son 50 High Holborn London' and serial number '283', side fitted with rackwork vernier scale annotated for barometric inches with weather observations and angled steel pointer for recording temperature, vernier with an independent friction slide adjustment with external secondary brass side knob, bottom edge with recording disc engraved with barometric scale, 33cm high 7.5cm wide
William Harris and Son, London - rare mid 19th century rosewood Patent Compensating Portable Barometer no. 283, rectangular silvered scale and U-shaped mercury tube terminating with a glass cistern and bulb, the centre with mercury thermometer tube and Fahrenheit scale calibrated from minus 10 to 150, the silvered plate engraved 'Harris's Patent Compensating Portable Barometer' and 'William Harris & Son 50 High Holborn London' and serial number '283', side fitted with rackwork vernier scale annotated for barometric inches with weather observations and angled steel pointer for recording temperature, vernier with an independent friction slide adjustment with external secondary brass side knob, bottom edge with recording disc engraved with barometric scale, 33cm high 7.5cm wide
William Harris and Son, London - rare mid 19th century rosewood Patent Compensating Portable Barometer no. 283, rectangular silvered scale and U-shaped mercury tube terminating with a glass cistern and bulb, the centre with mercury thermometer tube and Fahrenheit scale calibrated from minus 10 to 150, the silvered plate engraved 'Harris's Patent Compensating Portable Barometer' and 'William Harris & Son 50 High Holborn London' and serial number '283', side fitted with rackwork vernier scale annotated for barometric inches with weather observations and angled steel pointer for recording temperature, vernier with an independent friction slide adjustment with external secondary brass side knob, bottom edge with recording disc engraved with barometric scale, 33cm high 7.5cm wide
William Harris and Son, London - rare mid 19th century rosewood Patent Compensating Portable Barometer no. 283, rectangular silvered scale and U-shaped mercury tube terminating with a glass cistern and bulb, the centre with mercury thermometer tube and Fahrenheit scale calibrated from minus 10 to 150, the silvered plate engraved 'Harris's Patent Compensating Portable Barometer' and 'William Harris & Son 50 High Holborn London' and serial number '283', side fitted with rackwork vernier scale annotated for barometric inches with weather observations and angled steel pointer for recording temperature, vernier with an independent friction slide adjustment with external secondary brass side knob, bottom edge with recording disc engraved with barometric scale, 33cm high 7.5cm wide
William Harris and Son, London - rare mid 19th century rosewood Patent Compensating Portable Barometer no. 283, rectangular silvered scale and U-shaped mercury tube terminating with a glass cistern and bulb, the centre with mercury thermometer tube and Fahrenheit scale calibrated from minus 10 to 150, the silvered plate engraved 'Harris's Patent Compensating Portable Barometer' and 'William Harris & Son 50 High Holborn London' and serial number '283', side fitted with rackwork vernier scale annotated for barometric inches with weather observations and angled steel pointer for recording temperature, vernier with an independent friction slide adjustment with external secondary brass side knob, bottom edge with recording disc engraved with barometric scale, 33cm high 7.5cm wide
William Harris and Son, London - rare mid 19th century rosewood Patent Compensating Portable Barometer no. 283, rectangular silvered scale and U-shaped mercury tube terminating with a glass cistern and bulb, the centre with mercury thermometer tube and Fahrenheit scale calibrated from minus 10 to 150, the silvered plate engraved 'Harris's Patent Compensating Portable Barometer' and 'William Harris & Son 50 High Holborn London' and serial number '283', side fitted with rackwork vernier scale annotated for barometric inches with weather observations and angled steel pointer for recording temperature, vernier with an independent friction slide adjustment with external secondary brass side knob, bottom edge with recording disc engraved with barometric scale, 33cm high 7.5cm wide
William Harris and Son, London - rare mid 19th century rosewood Patent Compensating Portable Barometer no. 283, rectangular silvered scale and U-shaped mercury tube terminating with a glass cistern and bulb, the centre with mercury thermometer tube and Fahrenheit scale calibrated from minus 10 to 150, the silvered plate engraved 'Harris's Patent Compensating Portable Barometer' and 'William Harris & Son 50 High Holborn London' and serial number '283', side fitted with rackwork vernier scale annotated for barometric inches with weather observations and angled steel pointer for recording temperature, vernier with an independent friction slide adjustment with external secondary brass side knob, bottom edge with recording disc engraved with barometric scale, 33cm high 7.5cm wide

LOT NO 3598

STOCK NO 173068

William Harris and Son, London - rare mid 19th century rosewood Patent Compensating Portable Barometer no. 283, rectangular silvered scale and U-shaped mercury tube terminating with a glass cistern and bulb, the centre with mercury thermometer tube and Fahrenheit scale calibrated from minus 10 to 150, the silvered plate engraved 'Harris's Patent Compensating Portable Barometer' and 'William Harris & Son 50 High Holborn London' and serial number '283', side fitted with rackwork vernier scale annotated for barometric inches with weather observations and angled steel pointer for recording temperature, vernier with an independent friction slide adjustment with external secondary brass side knob, bottom edge with recording disc engraved with barometric scale, 33cm high 7.5cm wide

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Further Information & Condition Report

Discover a rare mid-19th century rosewood Patent Compensating Portable Barometer by William Harris and Son of London. This exquisite piece features a rectangular silvered scale with a U-shaped mercury tube and a central thermometer mercury tube. The plate is elegantly engraved with the maker's mark 'William Harris & Son 50 High Holborn London' and the unique serial number 283.

The barometer is thoughtfully designed with a brass knob for adjusting a steel recording pointer, and a rackwork vernier adjustment controlled by a brass knurled knob. An angled steel pointer is also included for recording temperature. The bottom edge of the barometer boasts a manual adjustment recording disc, meticulously engraved with a barometric scale.

Standing at 33cm high and 7.5cm wide, this exceptional piece is a testament to the craftsmanship and precision of William Harris and Son. Don't miss the opportunity to own this remarkable mid-19th century barometer, available at Duggleby Auctioneers.



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